It looks like she lost a LOT of the yolk she would have normally absorbed, however.  I would get some food into her tomorrow if she seems strong enough.  Yes, they can normally go up to 3 days, however, that is when they have all the yolk absorbed.  The longer she is still here the better chance she has.  I highly doubt she is gonna die of blood loss....I think she would have already if she was going to.  Yes, there is a risk of infection, but all of mine with rough navels did just fine with my last hatch.